This kind of has to do with games
Microsoft has started rolling out an update for Windows 8 (an OS 17% of Steam users have, according to Valve), appropriately titled "8.1".The Windows 8 Metro Interface (which I barely use) has been enhanced, and more personalization options are a thing. Since the "Windows 8 sucks" arguments have been done to death, I'll just say that I use it on one my machines, and with the right amount of customization, I haven't had any issues.
Ok great -- but what does this have to do with games? Well, in the digital Microsoft [Game] Store has been enhanced, and you can now redeem codes, which is something that should have been in there to begin with.